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Best Free Alternatives to ZoomInfo
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Category: B2B Sales Intelligence / LeadsVerified for 2025
Top Recommended Replacements
Apollo.io
FREEBest All-in-One Alternative
Why we like it
The 'ZoomInfo Killer' for 2025; features a massive 275M+ contact database; includes a built-in email sequencer, dialer, and task manager; the free plan gives you 1,000 email credits/mo, which is better than ZoomInfo's entire trial experience.
Keep in mind
Data accuracy for direct dials can be lower than ZoomInfo's verified mobile numbers.
Lusha
FREEBest for Quick Prospecting
Why we like it
The simplest 'browser extension' workflow; excellent for quickly grabbing a phone number or email from a LinkedIn profile; very high data accuracy for mobile numbers; much lower barrier to entry than ZoomInfo.
Keep in mind
The database is smaller than Apollo or ZoomInfo; limited search filters on lower tiers.
BookYourData
Best for Budget Control
Why we like it
No subscriptions; 97% accuracy guarantee; you pay only for the contacts you export; perfect for one-off campaigns without being locked into a $15k/year contract.
Keep in mind
Lacks the sales automation (sequencing/dialing) features found in Apollo.
Cognism
Best for European (EMEA) Data
Why we like it
The 'GDPR King'; significantly better European data coverage than ZoomInfo; offers 'Diamond Data' (human-verified mobile numbers); unrestricted access plans available (no credit counting).
Keep in mind
Still an enterprise-priced product; requires talking to sales for a quote.
Hunter.io
FREEBest for Email Finding
Why we like it
The most reliable tool for domain-based email discovery; includes a free email verifier; very high transparency on how data was found (source links provided).
Keep in mind
Does not provide mobile phone numbers or deep technographic data.
Seamless.AI
FREEBest for Real-time Search
Why we like it
Uses AI to crawl the web in real-time rather than relying on a static database; great for finding leads at companies that were recently founded; includes a powerful Chrome extension.
Keep in mind
Users report higher 'catch-all' email rates than other providers.
Snov.io
FREEBest for Cold Outreach
Why we like it
A combined lead finder and cold email sender; allows you to find leads on LinkedIn and immediately drop them into an automated drip campaign for one low price.
Keep in mind
Database is smaller than the major players; focused primarily on emails over phone numbers.
UpLead
Best for Data Accuracy
Why we like it
95% accuracy guarantee with real-time email verification at the moment of export; zero 'junk' data; very clean and intuitive UI.
Keep in mind
More expensive per-lead than Apollo; higher monthly starting price.
RocketReach
FREEBest for Recruiting/Executive Search
Why we like it
Massive database of personal and professional emails; excellent at finding high-level executives; API is very developer-friendly.
Keep in mind
UI is utilitarian; lacks the 'Intent Data' signals of ZoomInfo.
Clay
FREEBest for Data Enrichment
Why we like it
The 'Swiss Army Knife' of leads; aggregates data from 75+ providers (including Apollo, Hunter, and Clearbit); allows for hyper-personalized AI-written outreach based on recent news.
Keep in mind
High learning curve; requires an existing 'seed' list to be most effective.
Instant Data Scraper
FREEBest for Zero-Cost Leads
Why we like it
A Chrome extension that turns any website (Google Maps, Yellow Pages, Directories) into a CSV list; zero monthly cost; no 'credits' to worry about.
Keep in mind
Does not verify data; you must find the websites yourself.
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